Composition for removing stains

Abstract

The present invention relates to a composition, preferably a laundry detergent composition or laundry additive composition, comprising from 22% to 30% by weight, based on the total weight of the composition, of at least one bleaching agent; from 0.001% to 2% by weight, based on the total weight of the composition, of at least one oxygen transfer agent wherein the at least one oxygen transfer agent is selected from the group comprising 3-methyl-1, 2-benzisothiazole-1, 1-dioxide, 1, 2, 3-benzoxazin-2, 2-dioxide, and combinations thereof; and 0.001% to 1% by weight, based on the total weight of the composition, of at least one lipase. The invention also relates to a method of washing fabric in a washing machine. The invention also relates to the use of the composition for removing grease or oily stains and removing odor.

Description

[0001] The present invention relates to a composition, such as a laundry detergent or a laundry additive; a method of washing fabrics in a washing machine; a method of cleaning stains on a laundry item; and the use of the composition for removing stains and / or removing odors from clothing. Background Art

[0002] Consumers associate the desirability and wearability of clothing with characteristics such as whiteness, freshness, and / or the absence of stains. It is preferred when two characteristics are achieved in a simple manner.

[0003] The removal of stains can be achieved using bleaches, surfactants, and / or enzymes. For example, enzymatic stains require enzymes, oily or greasy stains require a combination of surfactants or enzymes, and bleach - able stains require bleaches to remove them.

[0004] When considering greasy or oily stains, in order to improve the performance of the detergent formulation, the amount of surfactant or enzyme is usually increased. This is not environmentally friendly and may be prohibitive from a cost perspective.

[0005] Clothes are also a place where bacteria can breed, causing the formation of odors. Generally, laundry detergents and fabric softeners try to overcome this problem by introducing a large amount of fragrance (e.g., in the form of microcapsules), which covers the undesirable odor. However, once the volatile fragrance molecules leave the fabric, the unpleasant odor will still remain, or it may re - emit over time or during ironing.

[0006] Conventional laundry detergent compositions can be used to clean clothes, which means that dirt and grime are removed. However, for removing stains or odors, and in the case of white clothing, other laundry detergent compositions with improved whiteness are needed.

[0007] Generally, people need to follow long cleaning procedures, including pre - treatment, vigorous rubbing actions, or high - temperature washing to achieve acceptable stain and odor removal. For example, the washing operation is usually carried out at a temperature of 40 °C to 60 °C.

[0008] The patent application WO2022 / 069468 A1 of Rickitt Benckiser Vanish B.V. describes a composition comprising a bleach, at least one oxygen transfer agent, and a protease. The composition disclosed in this document has a high content of bleach and is mainly used for removing turmeric and / or curry - type stains.

[0009] The patent application EP0446982 of Unilever NV describes a bleaching composition comprising a small amount of sulfimide. According to this document, sulfimide can improve the performance of the bleach precursor - peroxygen compound system. However, this document does not disclose a composition for removing greasy or oily stains.

[0010] Therefore, there is a need for a composition, preferably a laundry detergent composition or a laundry additive composition, which provides removal of stains (especially greasy or oily stains), preferably also providing removal of odors from the garments washed with such a composition.

[0011] The object of the present invention is to provide a composition, preferably a laundry detergent composition or a laundry additive, which provides a solution for these needs; especially when washing garments with this composition at a temperature lower than that usually used in washing operations.

[0012] The object of the present invention is to provide a method for washing fabrics in a washing machine.

[0013] The object of the present invention is to provide the use of a composition for removing greasy or oily stains from garments and / or removing odors from garments. Summary of the Invention

[0014] In a first aspect, the present invention relates to a composition comprising:

[0015] - at least one bleach in an amount of 22% to 30% by weight based on the total weight of the composition,

[0016] - at least one oxygen transfer agent in an amount of 0.001% to 2% by weight based on the total weight of the composition, wherein the at least one oxygen transfer agent is selected from the group consisting of 3 - methyl - 1,2 - benzisothiazole - 1,1 - dioxide, 1,2,3 - benzoxathiazine - 2,2 - dioxide, and combinations thereof, and

[0017] - at least one lipase in an amount of 0.001% to 1% by weight based on the total weight of the composition.

[0018] In one embodiment, the composition comprises:

[0019] - the at least one bleach in an amount of 25% to 30% by weight, preferably 27% to 30% by weight, more preferably 28% to 30% by weight based on the total weight of the composition; and

[0020] - based on 0.005% to 1.5% by weight, preferably 0.01% to 1.00% by weight, more preferably 0.025% to 0.75% by weight of the total weight of the composition of the at least one oxygen transfer agent.

[0021] In another embodiment, the at least one bleaching agent comprises at least one active oxygen source selected from the group consisting of inorganic peroxides, organic peracids, and combinations thereof; preferably, the at least one active oxygen source is selected from the group consisting of hydrogen peroxide, sodium percarbonate, ε-phthalimidoperoxycaproic acid (PAP), peracetic acid, potassium peroxymonosulfate (KMPS), and combinations thereof; most preferably, wherein the at least one bleaching agent comprises sodium percarbonate or consists of sodium percarbonate.

[0022] In one embodiment, the composition comprises 0.1% to 20% by weight, preferably 0.25% to 15% by weight, more preferably 0.5% to 10% by weight, most preferably 1% to 5% by weight of the total weight of the composition of the at least one bleach activator.

[0023] In another embodiment, the at least one bleach activator is selected from the group consisting of tetraacetylethylenediamine (TAED), acetylated triazine derivatives, acetylated glycoluriles, acylimides, acetylated phenol sulfonates, acetylated phenol carbonates, carbonic anhydrides, acetylated sugar derivatives, N-acetylated lactams, and combinations thereof; preferably, the at least one bleach activator comprises tetraacetylethylenediamine (TAED) or consists of it.

[0024] In a preferred embodiment, the at least one oxygen transfer agent comprises 3-methyl-1,2-benzisothiazole-1,1-dioxide or consists of it.

[0025] In one embodiment, the composition further comprises one or more other enzymes based on 0.0001% to 10% by weight, preferably 0.0005% to 5% by weight, more preferably 0.001% to 2.5% by weight, even more preferably 0.001% to 2% by weight, most preferably 0.001% to 1% by weight of the total weight of the composition; wherein the one or more other enzymes are selected from the group consisting of mannanase, amylase, cellulase, protease, and combinations thereof, preferably, wherein the one or more other enzymes are selected from the group consisting of amylase, cellulase, protease, and combinations thereof.

[0026] In another embodiment, the composition is a laundry detergent composition or a laundry additive composition.

[0027] In another embodiment, the 1:100 diluent of the composition has a pH of 9 to 12 at 20 °C, preferably 9.5 to 11.5, more preferably 10 to 11.

[0028] In one embodiment, the composition is in solid or powder form.

[0029] In a second aspect, the present invention relates to a method for washing fabrics in a washing machine, the method comprising adding the composition according to the first aspect to the washing machine and performing washing, wherein preferably, the temperature of the washing liquid is below 40 °C, more preferably below 30 °C, even more preferably below 25 °C, and most preferably below 20 °C; and wherein preferably, 0.5 g to 10 g, more preferably 1 g to 5 g of the composition is added to the washing machine per liter of the washing liquid.

[0030] In a third aspect, the present invention relates to a method for cleaning stains on clothing, the method comprising:

[0031] - mixing the composition according to the first aspect with water and bringing the stain into direct contact with the resulting mixture, then washing the clothing, or

[0032] - adding the composition according to the first aspect directly to the drum of a washing machine, or

[0033] - adding the composition according to the first aspect to a bucket filled with water and soaking for a predetermined period of time.

[0034] In a fourth aspect, the present invention relates to the use of the composition according to the first aspect in laundry washing and / or fabric treatment operations.

[0035] In a fifth aspect, the present invention relates to the use of the composition according to the first aspect for removing greasy or oily stains and / or removing odors from clothing.

[0036] In an embodiment of the fifth aspect, the clothing is made of cotton, synthetic material or a combination thereof, preferably, the synthetic material is polyester.

[0037] Definition

[0038] The following definitions are used in the present application.

[0039] The "Ganz value / instrumental evaluation" used in the present application means: whiteness simulating the Ganz - Grieser value specified in the A.I.S.E. laundry detergent test guidelines.

[0040] The "protease" used in the present application means: a class of enzymes that catalyze the breakdown of proteins into smaller polypeptides or individual amino acids.

[0041] The "amylase" used in this application refers to a class of enzymes that catalyze the hydrolysis of starch into sugars (such as glucose and maltose).

[0042] The "mannanase" used in this application refers to a class of enzymes that catalyze the hydrolysis of mannose derivatives.

[0043] The "mannose" used in this application refers to the sugar monomer of the aldohexose series of carbohydrates.

[0044] The "lipase" used in this application refers to a class of enzymes that catalyze the hydrolysis of fats or lipids.

[0045] The "cellulase" used in this application refers to a class of enzymes that catalyze the dissolution or hydrolysis of cellulose.

[0046] As used in this application, the "laundry detergent composition" refers to a composition mainly used for cleaning clothing and whose main function is to remove dirt and stains, which includes builders and does not have lipase.

[0047] The "laundry additive composition" used in this application refers to a composition for providing specific consumer benefits, such as: removing stains, eliminating odors, improving whiteness and / or disinfecting clothing. This means that the average function of the laundry additive is not to remove dirt or stains. In addition, the laundry additive is usually used as a pretreatment under soaking conditions or together with the laundry detergent composition.

[0048] The "polyester cotton" used in this application refers to a fabric made from a blend of cotton and polyester. For example, the blend can have 65% to 80% by weight of polyester and 20% to 35% by weight of cotton. Detailed Description

[0049] In a first aspect, the present invention relates to a composition comprising:

[0050] - at least one bleaching agent based on 22% to 30% by weight of the total weight of the composition,

[0051] - at least one oxygen transfer agent based on 0.001% to 2% by weight of the total weight of the composition, wherein the at least one oxygen transfer agent is selected from the group consisting of 3-methyl-1,2-benzisothiazole-1,1-dioxide, 1,2,3-benzoxathiazine-2,2-dioxide, and combinations thereof, and

[0052] - at least one lipase based on 0.001% to 1% by weight of the total weight of the composition.

[0053] The present inventors have observed that, compared to a composition that does not contain an oxygen transfer agent selected from the group consisting of 3-methyl-1,2-benzisothiazole-1,1-dioxide, 1,2,3-benzoxathiazine-2,2-dioxide, and combinations thereof, and at least one lipase, the detergent composition of the present invention provides better removal of greasy or oily stains.

[0054] These oxygen transfer agents react in the wash liquor to produce oxaziridines, which are responsible for the improved detergency.

[0055] Furthermore, even at temperatures below those typically used for automatic laundering (e.g., 30 °C or 40 °C), the compositions of the present invention allow for the combined effect of removing greasy or oily stains and odors. It is believed that by adding an oxygen transfer agent to a detergent composition comprising a bleach, a bleach activator, and a lipase, the activation energy required for stain removal is reduced; this means that the compositions of the present invention are capable of removing stains from fabrics at lower temperatures (e.g., 15 °C) and faster than compositions that do not contain an oxygen transfer agent and at least one lipase.

[0056] The effect obtained with the compositions of the present invention, especially in garments made of polyester, is an improvement in whiteness or brightening. As previously mentioned, the oxygen transfer agent in the compositions of the present invention produces oxaziridines, which are hydrophobic and can interact with polyethylene terephthalate in polyester textiles. This interaction enables better brightening of the textiles.

[0057] Preferably, the at least one oxygen transfer agent comprises or consists of 3-methyl-1,2-benzisothiazole-1,1-dioxide.

[0058] The composition may comprise:

[0059] - the at least one bleach in an amount of 25% to 30% by weight, preferably 27% to 30% by weight, more preferably 28% to 30% by weight, based on the total weight of the composition; and

[0060] - the at least one oxygen transfer agent in an amount of 0.005% to 1.5% by weight, preferably 0.01% to 1.00% by weight, more preferably 0.025% to 0.75% by weight, based on the total weight of the composition.

[0061] In a preferred embodiment, based on the total weight of the composition, the composition comprises the at least one bleach in an amount of 22% to 30% by weight, the at least one lipase in an amount of 0.001% to 1% by weight, and the at least one oxygen transfer agent in an amount of 0.025% to 0.75% by weight.

[0062] The inventors have observed that by combining an oxygen transfer agent and a lipase in the compositions of the present invention, a smaller amount of bleach can be used. For example, during detergency, the content of bleach is usually 35% to 50% by weight. However, if an oxygen transfer agent and at least one lipase are added to the composition, excellent detergency (especially for oily stains) can be obtained with a lower amount of bleach (e.g., bleach having about 30% by weight).

[0063] The bleach is preferably selected from the group consisting of oxygen-releasing bleaches, chlorine-releasing bleaches, and combinations of two or more thereof. The at least one bleach may then include at least one active oxygen source selected from the group consisting of inorganic peroxides, organic peracids, and combinations thereof; preferably, the at least one active oxygen source is selected from the group consisting of hydrogen peroxide, sodium percarbonate, ε-phthalimidoperoxycaproic acid (PAP), peracetic acid, potassium monopersulfate (KMPS), and combinations thereof; most preferably, wherein the at least one bleach comprises or consists of sodium percarbonate.

[0064] The at least one bleach activator is preferably selected from the group consisting of tetraacetylethylenediamine (TAED), acetylated triazine derivatives, acetylated glycoluril, acylimides, acetylated phenol sulfonates, acetylated phenol carbonates, carbonic anhydrides, acetylated sugar derivatives, N-acetylated lactams, and combinations thereof; preferably, the at least one bleach activator comprises or consists of tetraacetylethylenediamine (TAED).

[0065] The composition may include from 0.1% to 20% by weight, preferably from 0.25% to 15% by weight, more preferably from 0.5% to 10% by weight, and most preferably from 1% to 5% by weight, based on the total weight of the composition, of the at least one bleach activator.

[0066] The compositions of the present invention include at least one oxygen transfer agent and at least one lipase, which allows incorporation of more enzymes that have a synergistic effect with other elements of the composition. For example, the composition may also include from 0.0001% to 10% by weight, preferably from 0.0005% to 5% by weight, more preferably from 0.001% to 2.5% by weight, even more preferably from 0.001% to 2% by weight, and most preferably from 0.001% to 1% by weight, based on the total weight of the composition, of one or more other enzymes; wherein the one or more other enzymes are selected from the group consisting of mannanase, amylase, cellulase, protease, and combinations thereof, preferably, wherein the one or more other enzymes are selected from the group consisting of amylase, cellulase, protease, and combinations thereof.

[0067] The compositions of the present invention can take any form, such as solid, liquid, gel, powder, or mixtures thereof. Preferably, the composition is in the form of a solid or a powder.

[0068] The composition is preferably a laundry detergent composition or a laundry additive composition. More preferably, the composition is a laundry additive composition.

[0069] Preferably, the pH of a 1:100 dilution of the composition at 20 °C is from 9 to 12, more preferably from 9.5 to 11.5, even more preferably from 10 to 11.

[0070] Preferably, the composition further comprises a rheology modifier, a fragrance, a phase stabilizer, a dye, a softener, a chelating agent, an antibacterial agent, a transition metal compound, an antifoaming agent, a preservative, one or more surfactants, one or more fillers, a dye transfer inhibitor, an optical brightener or a combination thereof.

[0071] The composition may comprise one or more nonionic surfactants. Based on the total weight of the composition, the amount of the one or more nonionic surfactants in the composition may be from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably from 0.1% to 1.0% by weight. Examples of nonionic surfactants are ethoxylated alcohols and ethoxylated alkylphenols having the formula R 1 (OCH 2 CH 2 ) n OH, where R 1 is an aliphatic hydrocarbon group containing from 10 to 24 carbon atoms or an alkylphenyl radical in which the alkyl group contains from 10 to 22 carbon atoms; and n has an average value of from 1 to 10. Preferably, the one or more nonionic surfactants have the formula R 1 (OCH 2 CH 2 ) n OH; where R 1 is an alkyl group having from 10 to 24 carbon atoms and n has an average value of from 1 to 10.

[0072] For example, when R 1 is defined as being a C 12-14 group, it means an alkyl group having from 12 to 14 carbon atoms. For example, when R 1 is defined as being a C 12-16 group, it means an alkyl group having from 12 to 16 carbon atoms. For example, when R 1 is defined as being a C 13 group, it means an alkyl group having 13 carbon atoms.

[0073] In a preferred embodiment, the composition comprises: one or more non-ionic surfactants in an amount of from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably from 0.1% to 1.0% by weight, based on the total weight of the composition; wherein the one or more non-ionic surfactants have the formula R 1 (OCH 2 CH 2 ) n OH; wherein R 1 is an alkyl group having 12 to 16 carbon atoms, and the average value of n is from 3 to 6, preferably from 4 to 5.

[0074] The composition may also include any conventional anionic surfactant or mixtures thereof for use in detergent products. These include, for example, alkylbenzenesulfonic acid and its salts, and alkoxylated or non-alkoxylated alkyl sulfate materials. The anionic surfactant may be present in acid form or in neutralized (e.g., salt) form. The anionic surfactant may be straight-chain, branched, or a mixture thereof. An example of an anionic surfactant is sodium cumenesulfonate.

[0075] Examples of anionic surfactants are C 10-16 alkylbenzenesulfonic acid or the alkali metal salts of C 11-14 alkylbenzenesulfonic acid.

[0076] Another exemplary type of anionic surfactant is an alkoxylated alkyl sulfate surfactant, such as an ethoxylated alkyl sulfate surfactant. Such materials are also known as alkyl ether sulfates or alkyl polyethoxylate sulphates.

[0077] Alkyl ether sulfates are typically obtained in the form of a mixture comprising different R' chain lengths and different degrees of ethoxylation. Such mixtures typically also contain some non-ethoxylated alkyl sulfate ("AS") material.

[0078] In a preferred embodiment, the composition comprises:

[0079] - one or more non-ionic surfactants in an amount of from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably from 0.1% to 1.0% by weight, based on the total weight of the composition; wherein the one or more non-ionic surfactants have the formula R 1 (OCH 2 CH 2 ) n OH; wherein R 1 is an alkyl group having 12 to 16 carbon atoms, and the average value of n is from 3 to 6, preferably from 4 to 5; and

[0080] - one or more anionic surfactants in an amount of 0.01% to 10% by weight, preferably 0.05% to 7.5% by weight, more preferably 0.1% to 5% by weight, based on the total weight of the composition; wherein the one or more anionic surfactants preferably include sodium linear alkylbenzene sulfonate, sodium xylene sulfonate, alcohol sulphate, α-olefin sulfonate, or combinations thereof.

[0081] In this preferred embodiment, for example, the selection of non-ionic and anionic surfactants is important for the compatibility of the composition with a large amount of bleach, and is also important for controlling the foaming, detergency, fluidity, and other physical and chemical properties of the composition.

[0082] The composition may optionally contain a filler. Suitable fillers include metal bicarbonates and carbonates, such as alkali metals and alkaline earth metals. Examples include sodium carbonate, sodium bicarbonate, calcium carbonate, calcium bicarbonate, magnesium carbonate, magnesium bicarbonate, and sesquicarbonates of sodium, calcium, and / or magnesium. Other examples include metal carboxyglycines and metal glycine carbonates. Chlorides (such as sodium chloride), citrates, and sulfates (such as sodium sulfate, calcium sulfate, and magnesium sulfate) can also be used. Preferably, the composition includes at least one filler selected from the group consisting of alkyl carbonates, alkyl sulfates, and combinations thereof; more preferably, the filler is selected from the group consisting of sodium carbonate, sodium sulfate, and combinations thereof.

[0083] When a filler is present, the composition may include the at least one filler in an amount of 0.1% to 80% by weight, preferably 10% to 75% by weight, more preferably 20% to 70% by weight, based on the total weight of the composition.

[0084] The composition may include optical brighteners, which are preferably selected from the group consisting of stilbene, benzidine, benzothiazole, benzimidazole, benzoxazole, coumarin, pyrazoline, naphtalimide, naphtoxazole, distyryl-biphenyl, benzonitrile, benzopyrazole (including their derivatives and substituted compounds), and combinations thereof. Suitable optical brighteners include 4,4'-bis(2-sulfostyryl)biphenyl, 7-diethylamino-4-methylcoumarin, benzoxazole, 2,2'-(1,2-ethenediyl)bis[5-methyl] (including their substituted compounds), 4,4'-bis(triazin-2-ylamino)stilbene-2,2'-disulfonic acid, mono(azol-2-yl)stilbene, and bis(azol-2-yl)stilbene; styryl derivatives of benzene and biphenyl, such as 1,4-bis(styryl)benzene, 4,4'-bis(styryl)benzene, 4,4'-bis(styryl)biphenyl, 4,4'-bis(sulfostyryl)biphenyl sodium salt; pyrazolines, such as 1,3-diphenyl-2-pyrazoline; bis(phenyl-2-yl) derivatives, bis(benzoxazol-2-yl) derivatives, and bis(benzimidazol-2-yl) derivatives; 2-(benzofuran-2-yl)benzimidazole; coumarin, such as 4-methyl-7-hydroxy-coumarin or 4-methyl-7-diethylaminocoumarin; carbostyrils; naphtalimide; dibenzothiophene-5,5-dioxide; pyrene; or pyridinetriazole derivatives and combinations thereof.

[0085] When an optical brightener is present, the composition may include at least one optical brightener in an amount of 0.001 wt% to 1 wt%, preferably 0.01 wt% to 0.5 wt%, more preferably 0.05 wt% to 0.25 wt% based on the total weight of the composition.

[0086] The composition may further include a dye transfer inhibitor. Preferred dye transfer inhibitors (sometimes referred to as dye anti-redeposition agents or soil suspending agents) include polyvinyl alcohol, fatty amides, sodium carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinylpyrrolidone, polyvinylimidazole, polyvinyl oxazolidone, polyamine N-oxide polymers, and copolymers of N-vinylpyrrolidone and N-vinylimidazole.

[0087] When a dye transfer inhibitor is present, the composition may include at least one dye transfer inhibitor in an amount of 0.001 wt% to 1 wt%, preferably 0.01 wt% to 0.75 wt%, more preferably 0.05 wt% to 0.50 wt% based on the total weight of the composition.

[0088] In a preferred embodiment, the composition is a laundry detergent composition or a laundry additive composition in solid or powder form; based on the total weight of the composition, the composition comprises:

[0089] - 25% to 30% by weight of at least one bleaching agent, which preferably comprises or consists of sodium percarbonate;

[0090] - 0.025% to 0.75% by weight of at least one oxygen transfer agent, which preferably comprises or consists of 3-methyl-1,2-benzisothiazole-1,1-dioxide;

[0091] - 0.001% to 1% by weight of at least one lipase;

[0092] - 1% to 5% by weight of at least one bleach activator, which preferably comprises or consists of tetraacetylethylenediamine (TAED); and

[0093] Preferably, the composition further comprises 0.001% to 1% by weight of one or more other enzymes, which are preferably selected from the group consisting of amylase, cellulase, protease, and combinations thereof.

[0094] The composition of the present invention can be prepared by methods known to those skilled in the art.

[0095] In a second aspect, the present invention relates to a method for washing fabrics in a washing machine, the method comprising adding the composition according to the first aspect to the washing machine and performing washing, wherein preferably, the temperature of the washing liquid is lower than 40°C, more preferably lower than 30°C, even more preferably lower than 25°C, and most preferably lower than 20°C; and wherein preferably, 0.5 g to 10 g, more preferably 1 g to 5 g of the composition is added to the washing machine per liter of the washing liquid.

[0096] In a third aspect, the present invention relates to a method for cleaning stains on clothes, the method comprising:

[0097] - mixing the composition according to the first aspect with water and bringing the stain into direct contact with the resulting mixture, then washing the clothes, or

[0098] - directly adding the composition according to the first aspect to the drum of the washing machine, or

[0099] - adding the composition according to the first aspect to a bucket filled with water and soaking for a predetermined period of time.

[0100] When the composition is added to the drum of a washing machine or when the composition is added to a bucket filled with water, the washing liquor may have from 0.5 g to 20 g of the composition per liter of washing liquor. For example, if the composition is added to the drum of a washing machine, the washing liquor may have from 0.5 g to 10 g, preferably from 1 g to 5 g, even more preferably from 3 g to 5 g of the composition per liter of washing liquor. If the composition is added to a bucket filled with water, the washing liquor may have from 0.5 g to 20 g, preferably 1 g to 15 g, more preferably 5 g to 15 g of the composition per liter of washing liquor.

[0101] When the composition is added to a bucket filled with water, soak for a predetermined period of time, which may be from 30 minutes to 2 hours, preferably from 45 minutes to 90 minutes, more preferably about 1 hour.

[0102] It should be noted that the temperature of the washing liquor may be from 10 °C to 60 °C, preferably from 10 °C to 45 °C. The inventors have observed that the composition according to the first aspect of the present invention removes stains (especially greasy or oily stains) and odors even at temperatures lower than those typically used in washing operations (for example, at 25 °C or even at 15 °C).

[0103] This means that even at temperatures such as 25 °C, 20 °C or 15 °C, the method according to the second or third aspect is capable of removing greasy or oily stains and odors and preferably improving whiteness. If the washing temperature is reduced, the energy consumption is also reduced.

[0104] In a fourth aspect, the present invention relates to the use of the composition according to the first aspect in laundry washing and / or fabric treatment operations.

[0105] In a fifth aspect, the present invention relates to the use of the composition according to the first aspect for removing greasy or oily stains and / or removing odors from clothing.

[0106] In a preferred embodiment of the fifth aspect, the clothing is made of cotton, synthetic material or a combination thereof, preferably, wherein the synthetic material is polyester.

[0107] The foregoing aspects may be freely combined with any of the foregoing aspects disclosed herein.

[0108] Unless otherwise indicated, all percentages used in this disclosure are by weight.

[0109] The present invention will now be described in connection with the following non-limiting examples.

[0110] Example

[0111] Preparation

[0112] Formulations A and B in Table 1 are comparative compositions not according to the present invention, while formulation 1 is a formulation according to the present invention.

[0113] Table 1. Formulations

[0114]

[0115] Oxygen transfer agent = 3-methyl-1,2-benzisothiazole-1,1-dioxide.

[0116] The amounts of the enzymes in Table 2 are the amounts of these enzymes received from the supplier.

[0117] Protease / cellulase refers to a blend of protease-cellulase.

[0118] Performance test

[0119] Stain removal in washing machine

[0120] At about 25 °C, wash the technical stains attached to cotton in a washing machine in a washing liquor containing one of the detergent systems shown in Table 2.

[0121] Table 2. Detergent systems

[0122] Detergent system Ingredient Da 80 g commercial detergent + 60 g Preparation A Db 80 g commercial detergent + 60 g Preparation B D1 80 g commercial detergent + 60 g Preparation 1

[0123] The commercial detergent in Table 2 is OMO 10X sold in Brasil.

[0124] Washing test conditions

[0125] Wash the fabric with technical stains using one of the detergent systems in Table 2. Wash each sample in a BRASTEMP BWJ09 ABBNA30 washing machine at a temperature of about 25 °C using the Daily - Medium cycle (Dia a Dia - Medium cycle) (main wash time is about 67 minutes), and the water hardness is 12 °f.

[0126] Use a Datacolor 650 spectrophotometer and determine the detergency by measuring the Y value of the technical stains after washing. In Table 3:

[0127] - Compare the detergency performance of the detergent system (D1) including formulation 1 with the detergency performance of the detergent system (Da) including formulation A.

[0128] - Compare the detergency performance of the detergent system (D1) including formulation 1 with the detergency performance of the detergent system (Db) including formulation B.

[0129] In Table 3, "0" indicates no difference in detergency performance compared to a detergent system comprising formulation A or formulation B, and "+" indicates improved detergency performance.

[0130] Table 3. Detergency of technical stains attached to cotton at approximately 25 °C

[0131]

[0132] (Each value in Table 3 is the average of four measurements)

[0133] The results in Table 3 show that the formulations according to the invention provide better removal of greasy stains compared to the comparative formulations. This effect is achieved with a smaller amount of bleach.

[0134] Furthermore, the inventors have observed that the formulations according to the invention provide excellent odor removal.

[0135] The composition of the invention provides:

[0136] - Removal of greasy or oily stains;

[0137] - Odor removal; and

[0138] - Preferably, also provides improved whiteness of clothing.

[0139] Accordingly, one or more of the objects of the present invention are achieved by what is further defined in the appended claims.

Claims

1. A composition, the composition comprises: - at least one bleaching agent in an amount of 22% to 30% by weight based on the total weight of the composition, - at least one oxygen transfer agent in an amount of 0.001% to 2% by weight based on the total weight of the composition, wherein the at least one oxygen transfer agent is selected from the group consisting of 3-methyl-1,2-benzisothiazole-1,1-dioxide, 1,2,3-benzoxathiazine-2,2-dioxide, and combinations thereof, and - at least one lipase in an amount of 0.001% to 1% by weight based on the total weight of the composition.

2. The composition according to claim 1, wherein the composition comprises: - the at least one bleaching agent in an amount of 25% to 30% by weight, preferably 27% to 30% by weight, more preferably 28% to 30% by weight based on the total weight of the composition; and - the at least one oxygen transfer agent in an amount of 0.005% to 1.5% by weight, preferably 0.01% to 1.00% by weight, more preferably 0.025% to 0.75% by weight based on the total weight of the composition.

3. The composition according to claim 1 or 2, wherein the at least one bleaching agent comprises at least one active oxygen source selected from the group consisting of inorganic peroxides, organic peracids, and combinations thereof; preferably, the at least one active oxygen source is selected from the group consisting of hydrogen peroxide, sodium percarbonate, ε-phthalimidoperoxycaproic acid (PAP), peracetic acid, potassium monopersulfate (KMPS), and combinations thereof; most preferably, the at least one bleaching agent comprises or consists of sodium percarbonate.

4. The composition according to any one of the preceding claims, wherein the composition comprises the at least one bleach activator in an amount of 0.1% to 20% by weight, preferably 0.25% to 15% by weight, more preferably 0.5% to 10% by weight, most preferably 1% to 5% by weight based on the total weight of the composition.

5. The composition according to any one of the preceding claims, wherein the at least one bleach activator is selected from the group consisting of tetraacetylethylenediamine (TAED), acetylated triazine derivatives, acetylated glycoluril, acylimides, acetylated phenol sulfonates, acetylated phenol carbonates, carbonic anhydrides, acetylated sugar derivatives, N-acetylated lactams, and combinations thereof; preferably, the at least one bleach activator comprises or consists of tetraacetylethylenediamine (TAED).

6. The composition according to any one of the preceding claims, wherein the at least one oxygen transfer agent comprises or consists of 3-methyl-1,2-benzisothiazole-1,1-dioxide.

7. The composition according to any one of the preceding claims, wherein the composition further comprises one or more other enzymes in an amount of from 0.0001% to 10% by weight, preferably from 0.0005% to 5% by weight, more preferably from 0.001% to 2.5% by weight, even more preferably from 0.001% to 2% by weight, and most preferably from 0.001% to 1% by weight, based on the total weight of the composition; wherein the one or more other enzymes are selected from the group consisting of mannanase, amylase, cellulase, protease, and combinations thereof; preferably, wherein the one or more other enzymes are selected from the group consisting of amylase, cellulase, protease, and combinations thereof.

8. The composition according to any one of the preceding claims, wherein the composition is a laundry detergent composition or a laundry additive composition.

9. The composition according to any one of the preceding claims, wherein the 1:100 dilution of the composition has a pH of from 9 to 12, preferably from 9.5 to 11.5, and more preferably from 10 to 11 at 20 °C.

10. The composition according to any one of the preceding claims, wherein the composition is in solid or powder form.

11. A method for washing fabrics in a washing machine, the method comprising: adding the composition according to any one of the preceding claims to the washing machine and performing washing, wherein preferably, the temperature of the washing liquid is higher than 15 °C and lower than 40 °C, more preferably lower than 30 °C, even more preferably lower than 25 °C, and most preferably lower than 20 °C; and wherein preferably, 0.5 g to 10 g, more preferably 1 g to 5 g of the composition is added to the washing machine per liter of the washing liquid.

12. A method for removing stains on clothes, the method comprising: - mixing the composition according to any one of claims 1 to 10 with water, bringing the stain into direct contact with the resulting mixture, and then washing the clothes, or - directly adding the composition according to any one of claims 1 to 10 to the drum of a washing machine, or - adding the composition according to any one of claims 1 to 10 to a bucket filled with water and soaking for a predetermined period of time.

13. Use of the composition according to any one of claims 1 to 10 in laundry washing and / or fabric treatment operations.

14. Use of the composition according to any one of claims 1 to 10 for removing greasy or oily stains and / or removing odors from clothing.

15. The use according to claim 14, wherein the clothing is made of cotton, synthetic material, or a combination thereof, preferably wherein the synthetic material is polyester.

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